JP7287449B2 - COMMUNICATION CONTROL DEVICE, WIRELESS COMMUNICATION DEVICE, METHOD AND PROGRAM - Google Patents

Description

The present disclosure relates to communication control devices, wireless communication devices, methods, and programs.

As one of the measures for mitigating the depletion of frequency resources in the future, the secondary use of frequencies is being discussed. Secondary use of frequencies means secondary use by other systems of part or all of frequency channels that are preferentially allocated to a certain system. In general, a system to which a frequency channel is preferentially assigned is called a primary system, and a system that secondary uses the frequency channel is called a secondary system.

TV white space is an example of a frequency channel whose secondary use is being discussed. The TV white space refers to a channel not used by the TV broadcasting system according to the area among the frequency channels assigned to the TV broadcasting system as the primary system. By opening this TV white space to secondary systems, efficient utilization of frequency resources can be achieved. Physical layer (PHY) and MAC layer wireless access system specifications for enabling secondary use of TV white space include, for example, IEEE802.22, IEEE802.11af, and ECMA (European Computer Manufacturer Association)-392 ( There are several standards such as CogNea).

In the United States, a new frequency utilization form called CBRS (Citizens Broadband Radio Service) based on the secondary use of frequencies has been established based on the newly adopted FCC (Federal Communications Commission) Regulations Part 96 (Part 96). The movement to promote introduction to the 3700 MHz band is accelerating. At present, LTE (Long Term Evolution) and MultFire, which has been developed in recent years based on LTE, are expected to become mainstream as radio access systems operated by CBRS.

Regarding such secondary use of frequencies, Patent Document 1 below describes a holding unit that holds a position/frequency list in which position information and frequency information are associated, and frequency information corresponding to the position information based on the position information. a list creating unit for creating a usable frequency list by extracting from the position/frequency list; a transmitting unit for transmitting the usable frequency list to a base station that is a user of the usable frequency list; a list comparison unit that compares the transmitted usable frequency list with a usable frequency list returned from the base station, wherein the list creation unit uses the usable frequency list from the usable frequency list by the base station; A management server is disclosed that recreates the available frequency list based on information indicating the frequencies that are available.

Japanese Patent No. 5679033

However, the technology for the secondary use of frequencies proposed in Patent Document 1 and the like does not assume that cellular systems operated by a plurality of different operators coexist. In CBRS in the United States, it is assumed as one embodiment to operate LTE using Time Division Duplex (TDD), and in that case, synchronization is performed between different base stations for coexistence. need to take Within the same operator, in the case of LTE, it is possible to use an interface between base stations called the X2 interface. However, synchronization is difficult between different operators. This makes co-channel interference as well as adjacent channel interference a problem. In the future, it is easy to predict that different RATs such as 5G (5th Generation), which has different radio frames from LTE, or radio access technologies (RATs) after 5G will be operated with secondary frequency usage. Therefore, synchronization between base stations will become more difficult.

Therefore, the present disclosure proposes a new and improved communication control device, wireless communication device, device, method, and program capable of coexistence between a plurality of different RATs and between different operator networks.

According to the present disclosure, information indicating the network to which one or more wireless communication devices belong, radio access technology information, information regarding operational frequency bands, information regarding geographic location and/or area, information regarding duplex mode, or an information acquisition unit that acquires information related to transmission time intervals; and, using the information, determines a positional relationship between coverages of the wireless communication device, and according to the determined positional relationship, to each of the wireless communication devices. A communication control device is provided that includes a determination unit that selects recommended operating parameters, and a notification unit that notifies the wireless communication device of the selected operating parameters.

In addition, according to the present disclosure, information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, Alternatively, an information acquisition unit that acquires information related to a transmission time interval, a determination unit that extracts a wireless communication device corresponding to the information, and a notification that notifies the information related to the wireless communication device extracted by the determination unit. A communication control device is provided.

Further, according to the present disclosure, communication of information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval a communication unit that acquires recommended operation parameters selected based on the information by the communication control unit; and control that sets operation parameters based on the recommended operation parameters acquired by the communication unit. A wireless communication device is provided comprising:

In addition, according to the present disclosure, information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, Alternatively, acquiring information related to transmission time intervals, using the information to determine the positional relationship between the coverages of the wireless communication devices, and according to the determined positional relationships, to each of the wireless communication devices A method is provided for selecting recommended operating parameters and communicating the selected operating parameters to the wireless communication device.

In addition, according to the present disclosure, information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, Alternatively, for acquiring information related to the transmission time interval, extracting a wireless communication device corresponding to the information, and notifying the information related to the extracted wireless communication device. A method is provided.

Further, according to the present disclosure, communication of information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval for notifying a control device, obtaining recommended operating parameters selected based on the information by the communication control device, and setting operating parameters based on the recommended operating parameters; A method is provided.

In addition, according to the present disclosure, the computer can be configured for information indicating the network to which one or more wireless communication devices belong, radio access technology information, information regarding operational frequency bands, information regarding geographic location and/or region, and duplex mode. an information acquisition unit that acquires such information or information related to a transmission time interval; and, using the information, determines a positional relationship between coverages of the wireless communication device, and according to the determined positional relationship, the radio A program is provided for causing a determining unit that selects recommended operating parameters for each communication device and a notification unit that notifies the wireless communication device of the selected operating parameters.

In addition, according to the present disclosure, the computer can be configured for information indicating the network to which one or more wireless communication devices belong, radio access technology information, information regarding operational frequency bands, information regarding geographic location and/or region, and duplex mode. or an information acquisition unit that acquires information related to a transmission time interval, a determination unit that extracts a wireless communication device corresponding to the information, and the information related to the wireless communication device extracted by the determination unit. A notifying unit for notifying and a program for functioning are provided.

In addition, according to the present disclosure, the computer is provided with information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval. a communication unit for obtaining recommended operation parameters selected by the communication control unit based on the information; and obtaining operation parameters based on the recommended operation parameters obtained by the communication unit. A control unit for setting and a program for functioning are provided.

As described above, according to the present disclosure, it is possible to coexist between a plurality of different RATs and between different operator networks. In addition, the above effects are not necessarily limited, and in addition to the above effects or instead of the above effects, any of the effects shown in this specification, or other effects that can be grasped from this specification may be played.

1 is an explanatory diagram for explaining an overview of a communication system according to an embodiment of the present disclosure; FIG. It is a figure for demonstrating the architecture which concerns on this embodiment. It is a block diagram showing an example of a configuration of a communication control device according to the present embodiment. It is a figure which shows the example of arrangement|positioning of the radio|wireless communication apparatus which concerns on this embodiment. It is a figure which shows the example of arrangement|positioning of the radio|wireless communication apparatus which concerns on this embodiment. It is a figure which shows the example of arrangement|positioning of the radio|wireless communication apparatus which concerns on this embodiment. It is a figure which shows the example of arrangement|positioning of the radio|wireless communication apparatus which concerns on this embodiment. It is a figure which shows the example of arrangement|positioning of the radio|wireless communication apparatus which concerns on this embodiment. It is a block diagram showing an example of the configuration of a wireless communication device according to the present embodiment. FIG. 2 is a diagram for explaining an example of a procedure performed between a communication control device and a radio communication device according to the embodiment; FIG. 2 is a diagram for explaining an example of a procedure performed between a communication control device and a radio communication device according to the embodiment; 1 is an explanatory diagram for explaining an overview of a communication system according to an embodiment of the present disclosure; FIG. FIG. 4 is a diagram for explaining an example of a procedure performed between a plurality of communication control devices according to this embodiment; FIG. FIG. 4 is a diagram for explaining an example of a procedure performed between a plurality of communication control devices according to this embodiment; FIG.

Preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the present specification and drawings, constituent elements having substantially the same functional configuration are denoted by the same reference numerals, thereby omitting redundant description.

In addition, in this specification and drawings, elements having substantially the same functional configuration may be distinguished by attaching different letters after the same reference numerals. For example, a plurality of elements having substantially the same functional configuration are distinguished like communication control devices 10A and 10B as necessary. However, when there is no particular need to distinguish between a plurality of elements having substantially the same functional configuration, only the same reference numerals are used. For example, the communication control devices 10A and 10B are simply referred to as the communication control device 10 when there is no particular need to distinguish between them.

Note that the description will be given in the following order.
1. Overview 1.1. Overall Configuration of System 1.2. Technical issues 2 . First Embodiment 2.1. Architecture 2.2. Configuration example of communication control device 2.3. Technical features of communication control device 2.4. Configuration example of wireless communication device 2.5. Technical features of wireless communication device 2.6. Procedure 3 . Second Embodiment 3.1. Configuration example of communication control device 3.2. Technical features of communication control device 3.3. Procedure 4. summary

<<1. Overview＞＞
<1.1. Overall configuration of the system>
FIG. 1 is an explanatory diagram for explaining an overview of a communication system according to an embodiment of the present disclosure.

Referring to FIG. 1, a plurality of wireless communication devices 30A operated by a first carrier A and a plurality of wireless communication devices 30B operated by a second carrier B are shown. Also, the wireless communication device 30C is a wireless communication device that is not managed by a communication carrier. As shown in FIG. 1, wireless communication device 30 is typically a transmitting station such as a base station or access point. The wireless communication device 30A, which is a transmitting station, provides services of the carrier A to receiving stations located inside the service area. Similarly, the wireless communication device 30B, which is a transmitting station, provides the services of the communication carrier B to the receiving stations located inside the service area.

Wireless communication devices 30A and 30B are connected to network management devices 20A and 20B, respectively. The network management device 20 is a device introduced by a communication carrier to manage and control a plurality of wireless communication devices 30 .

In LTE, for example, it may be called EMS (Element Management System) or DM (Domain Manager). Alternatively, it may be an entity called DP (Domain Proxy) included in the architecture standardized by WINNF (Wireless Innovation Forum). Alternatively, a management device that integrally provides EMS, DM, and DP, or a collection of these may be treated as a network management device.

The network management devices 20A and 20B are connected to the communication control device 10. FIG. A wireless communication device 30</b>C that exists independently is also connected to the communication control device 10 . The communication control device 10 gives the radio communication device 30 a secondary use authorization for the frequency channel assigned to the primary system within a range that does not cause fatal interference to the primary system. Specifically, a function of notifying each wireless communication device of a list of available frequencies and/or transmission power, or determination of availability of frequencies and/or transmission power desired to be used by the wireless communication device 30 and determination thereof It has a function of notifying the result to each of the wireless communication devices, and typically protects the primary system. The network management device 20 mediates communication between the plurality of wireless communication devices 30 under its control and the communication control device 10 and/or reconfigures the wireless parameters of the wireless communication device 30 based on information obtained from the communication control device 10. Implement subsidies, etc.

Primary systems include, for example, TV broadcasting system, PMSE (Program Making and Special Events), radar (military, shipboard, weather, etc.), fixed satellite service (FSS), mobile satellite service (MSS) Service) and Earth Exploration Satellite Service (EESS: Earth Exploration Satellite Service).

In addition, the communication control apparatus 10 also makes control decisions that allow each of the plurality of wireless communication apparatuses 30 to operate without critical interference with other wireless communication apparatuses 30 . Coexistence management is typically performed.

Here, there are cases where the service areas of a plurality of telecommunications carriers overlap geographically and the frequency bands used by them overlap. As a specific example, for example, a case where an LTE (Long Term Evolution) service provision area and a Wi-Fi service provision area operated by different communication carriers overlap. Alternatively, for example, even within the same telecommunications carrier, there may be cases where the areas where LTE (Long Term Evolution) services are provided overlap with the areas where 5G and/or future services are provided. Alternatively, for example, it is conceivable that the area in which wireless communication services (LTE, 5G, etc.) operated by a communication carrier overlaps with the area in which privately operated wireless communication devices are operated.

In this embodiment, under such circumstances, it is assumed that one or more wireless communication devices cooperate to secondary use part or all of the frequency band assigned to the primary system. For this purpose, it is desirable that information appropriate for coexistence be exchanged between different carriers and between different wireless communication devices. Alternatively, it is desirable that the communication control device makes a control decision using appropriate information.

<1.2. Technical issues>
There are the following concerns in implementing coexistence between different carriers and between different wireless communication devices.

(1) Synchronization between Wireless Communication Devices Belonging to Different Operators It is assumed that wireless communication devices will be operated in TDD. In the case of LTE, radio frame configurations with different combinations of uplink and downlink are defined, and it is necessary to set the same combination between wireless communication devices in order to reduce interference. Also, time synchronization is required. Within the same operator, synchronization between wireless communication devices (base stations) can be easily achieved by utilizing the X2 interface defined as an interface between wireless communication devices (base stations).

(2) Synchronization between wireless communication devices having different RATs LTE is not the only RAT used in secondary frequency use. It may be 5G, or it may be the next generation RAT. In such a case, since radio frame configurations differ between RATs, synchronization between radio communication devices having different RATs becomes difficult even within the same operator. If the wireless communication devices belong to different operators, it becomes even more difficult to ensure synchronization.

Therefore, the invention according to the embodiment of the present disclosure has been provided by focusing on the above circumstances. In the secondary use of frequencies so far, coexistence control focused on the duplex mode of wireless communication devices has not been provided. Due to the lack of information regarding duplex mode, co-channel interference and adjacent channel interference can occur, for example. Therefore, in the present embodiment, in the case where secondary frequency usage management and coexistence control are performed by the communication control apparatus, information related to the duplex mode is exchanged and coexistence control determination is performed based on the information. This enables coexistence between different carriers and between different wireless communication devices.

<<2. First Embodiment>>
<2.1. Architecture>
FIG. 2 is a diagram for explaining the architecture according to this embodiment.

<2.2. Configuration example of communication control device>
A configuration example of the communication control device will be described below with reference to FIG.

FIG. 3 is a block diagram showing an example of the configuration of the communication control device 10 according to this embodiment. As shown in FIG. 3, the communication control device 10 comprises a first communication section 110, a second communication section 120 and a processing section . Furthermore, the processing unit 130 includes an information acquisition unit 131 , a determination unit 132 and a notification unit 133 .

The first communication unit 110 is a communication interface that mediates communication between the communication control device 10 and the network management device 20 and/or the wireless communication device 30 . The first communication unit 110 supports any wireless or wired communication protocol and establishes communication connections between one or more network management devices 20 and/or wireless communication devices 30 .

The processing unit 130 provides various functions of the communication control device 10 . The processing unit 130 includes an information acquisition unit 131 , a determination unit 132 and a notification unit 133 . Note that the processing unit 130 may further include components other than these components. That is, the processing unit 130 can perform operations other than those of these components. Details of the functions of the processing unit 130 will be described in detail later.

<2.3. Technical Features of Communication Control Device>
(1) Information Acquisition Function The information acquisition unit 131 acquires information necessary for determining coexistence control between one or more wireless communication devices 30 . At least, the information indicating the network to which the wireless communication device belongs, the wireless access technology information, the information on the operable frequency band, the information on the location, the information on the duplex mode, and the information on the transmission time are acquired.

Part or all of the information may be obtained directly from the wireless communication device 30 . Alternatively, when part or all of the information is managed by an information management device belonging to an external network or an intra-network, the information may be obtained from the information management device.

The information indicating the network to which the wireless communication device belongs is typically an identifier indicating the communication carrier. MNC (Mobile Network Code), PLMN (Public Land Mobile Network) ID, etc. can be assumed. If the carrier further implements grouping of wireless communication devices, an identifier indicating the group to which the wireless communication device belongs may be included. Furthermore, if one carrier provides one or more network management devices 20, an identifier that identifies the network management device may be included. If the wireless communication device is a RAT that provides an autonomous decentralized network such as Wi-Fi, it may be an identifier that indicates a local network such as SSID.

Radio access technology information is typically an identifier indicating a RAT that a radio communication device has. Not only identifiers of RATs in operation but also identifiers of RATs that can be changed by the wireless communication device may be included. Furthermore, RAT-specific operational parameters that can contribute to determination of coexistence control, such as Transmission Mode defined in LTE, may be included.

The information about the operable frequency band is typically the frequency band that is operable by the hardware configuration of the wireless communication device. For example, starting and ending frequencies may be provided. Alternatively, for example, it may be a band number defined by 3GPP (3rd Generation Partnership Project). Alternatively, if channel numbers are assigned, eg, TV frequency bands, the channel number may be provided. Or, for example, the operable frequency band may be provided by a combination of center frequency and bandwidth. Regardless of which information is provided, if it is possible to operate in a plurality of frequency bands, a plurality of pieces of information relating to the operable frequency bands may be provided.

Location-related information is typically information that can identify the geographic location and/or region of a wireless communication device. For example, it may be coordinate information acquired by a wireless communication device having a positioning function represented by GNSS (Global Navigation Satellite System). Typically, information on latitude, longitude, altitude and positioning error may be included. Alternatively, for example, it may be location information registered in an information management device managed by the NRA (National Regulatory Authority) or its entrusted agency. In addition, for example, information indicating a geographic area may include information such as census tracts, area names, prefecture names, state names, ward and municipality names, street addresses, and addresses as administratively regulated information. . Alternatively, for example, a geographic area may be represented by a combination of three or more pieces of coordinate information. Alternatively, for example, a geographic area may be represented by a combination of coordinate information and radius information.

The information related to the duplex mode includes at least an identifier indicating the duplex mode being operated in the wireless communication device. Identifiers indicating Frequency Division Duplex (FDD), Time Division Duplex (TDD), Supplemental Downlink (SDL), Full Duplex, etc. may be included. . When the identifier indicates TDD, it further includes an identifier indicating the configuration in operation among the TDD frame configurations shown in Table 1 below.

Table 1 above is described in 3GPP TS 36.300.

The information related to transmission time is typically TTI (Transmission Time Interval). Additionally, if the TTI is variable, a TTI value that can be changed by the wireless communication device may be included.

(2) Judgment Function The judgment unit 132 typically has a function of making judgments related to coexistence control. Specifically, using the information of one or more wireless communication devices acquired by the information acquisition unit, the service area or coverage provided by each of the wireless communication devices is compared, and the position between the wireless communication devices is compared. Determine relationships. Here, the following determinations are made.

(Case 1)
FIG. 4 shows a situation in which a plurality of wireless communication devices 30 belonging to the same operator operate the same RAT and their coverage partially overlaps. In such a situation, a RAT-specific coexistence mechanism such as LBT (Listen-Before-Talk) provided by the wireless communication device 30 can be used. Furthermore, since it is within the same operator, it is also possible to utilize a unique coexistence algorithm by the network management device 20 and an interface between the wireless communication devices 30 (eg LTE X2 interface). Synchronization between the wireless communication devices 30 during TDD can also be easily achieved.
Therefore, in such a case, the radio communication device 30 may be assigned the same frequency band or different frequency bands.

(Case 2)
FIG. 5 shows a situation in which a plurality of wireless communication devices 30 belonging to the same operator operate different RATs and their coverage partially overlaps. In such a case, it is considered that the coexistence mechanism of the sensing system such as LBT is not very effective due to the difference in the radio frame structure, the reference signal, and the like. Moreover, even if the radio communication devices 30 are time-synchronized, it is difficult to control interference even within the same operator due to differences in radio frame configurations. Furthermore, in the case of TDD, it is desirable to provide a guard band as even adjacent channel interference can be a major problem.
Therefore, in such a case, the available frequency bands notified from the communication control device 10 to each wireless communication device 30 include at least different frequency bands.

(Case 3)
FIG. 6 shows a situation in which wireless communication devices 30 belonging to different operators operate the same RAT and their coverage partially overlaps. In such a case, there is a possibility that a coexistence mechanism unique to the RAT, such as the LBT, provided to the wireless communication device 30 will work. However, since the operators are different, it is difficult to realize coexistence between operators by utilizing the unique coexistence algorithm by the network management device 20 or the interface between the wireless communication devices 30 (eg LTE X2 interface). . Furthermore, in the case of TDD, it is desirable to have a guard band since adjacent channel interference can be a significant problem. Therefore, in such a case, the available frequency bands notified from the communication control device 10 to each wireless communication device include at least different frequency bands. Further, each wireless communication device is provided with TDD frame configuration information of adjacent coverage. Alternatively, the communication control device 10 selects a TDD frame configuration recommended for each wireless communication device and provides it to each wireless communication device.

(Case 4)
FIG. 7 shows a situation in which wireless communication devices 30 belonging to different operators operate different RATs and their coverage partially overlaps. In such a case, it is considered that the coexistence mechanism of the sensing system such as LBT is not very effective due to the difference in the radio frame structure, the reference signal, and the like. Furthermore, since the operators are different, it is difficult to realize coexistence between operators by utilizing a unique coexistence algorithm by the network management device 20 or an interface between wireless communication devices (eg LTE X2 interface). Furthermore, in the case of TDD, it is desirable to provide a guard band as even adjacent channel interference can be a major problem.
Therefore, in such a case, the available frequency bands notified to each wireless communication device from the frequency management database include at least different frequency bands. Furthermore, a TDD frame configuration recommended for each wireless communication device is selected and provided to each wireless communication device.

(Case 5)
FIG. 8 shows a situation in which the coverage does not overlap between a plurality of wireless communication devices 30 regardless of operators or RATs. In such a case, the possibility of critical interference occurring between wireless communication devices is extremely low, regardless of the type of service provider or RAT. Therefore, in such a case, any available frequency band notified from the communication control device to each wireless communication device may be used. If possible, from the viewpoint of frequency utilization efficiency, it is desirable to be notified that the same frequency band is available.

(3) Notification Function The notification section 133 typically has a function of generating a message based on the determination result of the determination section and sending it to the communication section. Specifically, as the recommended operating parameters of the wireless communication device 30, any one of recommended radio access technology information, information about the recommended frequency band, information about the recommended duplex mode, and information about the recommended transmission time interval. The above information may be included.

The recommended radio access technology information is typically an identifier indicating a RAT whose operation is recommended and/or an operation parameter unique to the RAT. The RAT-specific operational parameter is, for example, Transmission Mode defined in LTE.

Information related to the recommended frequency band is, for example, provided with the start and end of the frequency band recommended for operation. Alternatively, for example, it may be a band number defined by 3GPP (3rd Generation Partnership Project). Alternatively, if channel numbers are assigned, eg, TV frequency bands, the channel number may be provided. Or, for example, a recommended frequency band may be provided by a combination of center frequency and bandwidth. Regardless of which information is provided, if operation in multiple frequency bands is recommended, multiple pieces of information related to the recommended frequency bands may be provided.

Information related to the recommended duplex mode includes at least an identifier indicating the duplex mode recommended for operation. Identifiers indicating Frequency Division Duplex (FDD), Time Division Duplex (TDD), Supplemental Downlink (SDL), Full Duplex, etc. may be included. . When the identifier indicates TDD, an identifier indicating the configuration in operation among the TDD frame configurations shown in Table 1 is further included.

The recommended transmission time interval is typically TTI (Transmission Time Interval).

<2.4. Configuration Example of Wireless Communication Device>
A configuration example of the wireless communication device will be described below with reference to FIG.

FIG. 9 is a block diagram showing an example of the configuration of the wireless communication device 30 according to this embodiment. As shown in FIG. 3 , the wireless communication device 30 has a communication section 310 and a control section 320 .

The communication unit 310 is a communication interface that mediates communication between the communication control device 10 and the network management device 20 and/or the wireless communication device 30 . The communication unit 310 supports any wireless communication protocol or wired communication protocol and establishes communication connections with the communication control device and/or the network management device 20 and/or the wireless communication device 30 . The communication unit 310 can have multiple different communication sessions. In other words, for example, the communication unit 310 can simultaneously perform communication with the network management device 20 via a wired line and communication with another wireless communication device 30 via a wireless line.

The control unit 320 has functions of controlling communication parameters in the communication unit 310 and generating messages and packets.

<2.5. Technical Features of Wireless Communication Device>
(1) Communication Function The communication unit 310 has a function of delivering a message including information necessary for communication control in the communication control device 10 to the communication control device 10 . The information necessary for the communication control includes at least information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval. including. In addition, if the location information is not managed by the NRA or its entrusted agency and must be acquired by its own location positioning function and notified to the communication control device 10, the message includes the location information.
The same information as described in the above "technical features of the communication control device" is used.

The communication unit 310 also has a function of acquiring recommended operating parameters selected based on the information in the communication control device 10 . The recommended operating parameters may include at least one of recommended radio access technology information, recommended frequency band information, recommended duplex mode information, and recommended transmission time interval information. The same information as described in the above "technical features of the communication control device" is used.

(2) Control Function The control unit 320 has a function of generating a message including information required for communication control to be delivered to the communication control device 10 .

The control unit 320 also has a function of changing operation parameters of wireless communication performed by the communication unit 310 based on the recommended operation parameters acquired by the communication unit 310 .

<2.6. Procedure>
Below, an example of a procedure that is performed when the communication control device 10 and the wireless communication device 30 are introduced will be described with reference to FIGS. 10 and 11. FIG.

The procedure shown in FIG. 10 is a procedure for executing a communication control request. A communication control request (S110), a communication control judgment (S120), and a communication control response (S130) are executed.

The communication control request (S110) includes at least information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval. including. In addition, if the location information is not managed by the NRA or its entrusted agency and needs to be acquired by its own location positioning function and notified to the communication control device 10, the message includes the location information.

In the communication control determination (S120), using the information of one or more wireless communication devices acquired in the communication control request (S110), the service area or coverage provided by each of the wireless communication devices is compared, and the wireless Positional relationships between communication devices are determined, and recommended operating parameters are selected.

The communication control response (S130) includes any one or more of the recommended radio access technology information, information on the recommended frequency band, information on the recommended duplex mode, and information on the recommended transmission time interval. sell.

The procedure illustrated in FIG. 11 is a procedure for wireless communication device 30 to request communication control to communication control device 10 via network management device 20 . A communication control request (S110), an accumulated communication control request (S111), a communication control determination (S120), an accumulated communication control response (S131), and a communication control response (S130) are executed.

The communication control request (S110) includes at least information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval. including. In addition, if the location information is not managed by the NRA or its entrusted agency and needs to be acquired by its own location positioning function and notified to the communication control device 10, the message includes the location information.

The accumulated communication control requests (S111) include communication control requests for one or more wireless communication devices.

In the communication control determination (S120), using the information of one or more wireless communication devices acquired in the communication control request (S110), the service area or coverage provided by each of the wireless communication devices is compared, and the wireless Positional relationships between communication devices are determined, and recommended operating parameters are selected.

The cumulative communication control response (S110) includes communication control responses related to one or more wireless communication devices. Each communication control response may include any one or more of recommended radio access technology information, information on recommended frequency bands, information on recommended duplex mode, and information on recommended transmission time intervals. .

The communication control response (S110) includes a communication control response to each wireless communication device decomposed from the cumulative communication control response.

<<3. Second Embodiment>>
The architecture according to the second embodiment will be described with reference to FIG. Since the same configuration as in the first embodiment can be used for the configuration under each communication control device, only the communication of a plurality of communication control devices will be described in the description of the second embodiment. .

In the second embodiment, there are a plurality of communication control devices 10A and 10B, and these communication control devices exchange information about wireless communication devices under their control and carry out communication control decisions related to coexistence.

<3.1. Configuration example of communication control device>
As in the first embodiment, the block diagram shown in FIG. 3 shows an example of the configuration of the communication control device 10 according to this embodiment. As shown in FIG. 3, the communication control device 10 comprises a first communication section 110, a second communication section 120 and a processing section . Furthermore, the processing unit 130 includes an information acquisition unit 131 , a determination unit 132 and a notification unit 133 .

The second communication unit 120 is a communication interface that mediates communication with other communication control devices. The second communication unit 120 supports any wireless or wired communication protocol and establishes communication connections with one or more communication controllers.

The processing unit 130 provides various functions of the communication control device 10 . The processing unit 130 includes an information acquisition unit 131 , a determination unit 132 and a notification unit 133 . Note that the processing unit 130 may further include components other than these components. That is, the processing unit 130 can perform operations other than those of these components. Details of the functions of the processing unit 130 will be described in detail later.

<3.2. Technical Features of Communication Control Device>
(1) Information Acquisition Function As in the first embodiment, the information acquisition unit 131 acquires information necessary for determining coexistence control between one or more wireless communication devices 30 . In the second embodiment, information on wireless communication devices under control of other communication control devices is also acquired. At least, the information indicating the network to which the wireless communication device belongs, the wireless access technology information, the information on the operable frequency band, the information on the location, the information on the duplex mode, and the information on the transmission time are acquired.

(2) Determining Function The determining unit 132 typically has a function of determining coexistence control as in the first embodiment. Specifically, using the information of one or more wireless communication devices acquired by the information acquisition unit, the service area or coverage provided by each of the wireless communication devices is compared, and the position between the wireless communication devices is compared. Determine relationships.

Furthermore, based on information acquisition requests from other communication control devices, the determination unit 132 performs determination processing such as information extraction and selection of the corresponding wireless communication device.

(3) Notification Function The notification unit 133 typically has a function of generating a message based on the determination result of the determination unit and sending it to the communication unit, as in the first embodiment. Specifically, in the second embodiment, the generated message is sent to the second communication unit 120 .

<3.3. Procedure>
An example of a procedure performed between the communication control device 10A and the communication control device 10B will be described below with reference to FIGS. 13 and 14. FIG.

The procedure illustrated in FIG. 13 is a procedure for executing an information acquisition request related to communication control. An information acquisition request (S141), determination processing related to information acquisition (S151), and a response (S161) are performed.

The information acquisition request (S141) may include, for example, information regarding geographic location and/or area. For example, coordinate information consisting of latitude, longitude and altitude may be included. In addition, for example, information indicating a geographic area may include information such as census tracts, area names, prefecture names, state names, ward and municipality names, street addresses, and addresses as administratively regulated information. . Alternatively, for example, a geographic area may be represented by a combination of three or more pieces of coordinate information. Alternatively, for example, a geographic area may be represented by a combination of coordinate information and radius information.

The information acquisition request (S141) may further include information on frequency bands as a search condition. For example, the start and end of the frequency band are provided. Alternatively, for example, it may be a band number defined by 3GPP (3rd Generation Partnership Project). Alternatively, if channel numbers are assigned, eg, TV frequency bands, the channel number may be provided. Alternatively, for example, a frequency band may be designated by a combination of center frequency and bandwidth. Regardless of which type of information is provided, if it is desired to obtain information on a wireless communication device with respect to multiple frequency bands, multiple pieces of information related to frequency bands may be provided.

The information acquisition request (S141) can further include information on the duplex mode as a search condition. Identifiers indicating Frequency Division Duplex (FDD), Time Division Duplex (TDD), Supplemental Downlink (SDL), Full Duplex, etc. may be included. .

In the determination process (S151) related to information acquisition, the information acquired by the information acquisition request (S141) is used as a search condition to extract corresponding wireless communication devices.

The response (S161) includes the information of the wireless communication device extracted in the information acquisition determination process (S151). At least, the information indicating the network to which the wireless communication device belongs, the wireless access technology information, the operating frequency band information, the location information, the duplex mode information, and the transmission time information are acquired.

Note that part or all of the information may be acquired from the information management device after the response (S161) if the information management device belonging to an external network or an intra-network manages part or all of the information. .

The procedure shown in FIG. 14 is a procedure for making a communication control request to another communication control device. A communication control request (S142), a communication control determination process (S152), and a communication control response (S162) are executed.

In the communication control request (S142), for example, a wireless parameter change command is notified. In this case, it includes at least an identifier that can identify the wireless communication device, and further includes one or more combinations of radio access technology information, information related to operating frequency band, information related to duplex mode, and information related to transmission time. sell.

In the communication control determination process (S152), based on the information acquired in the communication control request (S142), the target wireless communication device is extracted, and the parameter included in the information is changed. do.

In the extraction of the wireless communication device, the target wireless communication device is searched from the wireless communication device list or the like managed by itself using the information acquired in the communication control request (S142) as a search condition.

For example, if a change parameter is specifically specified in the communication control request (S142), the extracted wireless communication device determines whether or not the parameter included in the information can be changed. Determine whether it is possible and change the parameters. Alternatively, for example, if the change parameter is not specifically specified in the communication control request (S142), the extracted wireless communication device performs selection processing of parameters to be changed and calculation processing of parameter values to be changed. .

In the communication control response (S162), a response message is generated based on the result of the communication control determination process (S152), and the message is delivered to the request source communication control device. Typically, at least a processing status code is included, and an error message may be included if the processing status code indicates anything other than SUCCESS.

<<4. Summary>>
An embodiment of the present disclosure has been described in detail above with reference to FIGS. As described above, the communication control device according to the present embodiment includes information indicating the network to which the wireless communication device managed by itself belongs, wireless access technology information, information relating to the operable frequency band, location information, and duplex mode. information, information related to the transmission time interval can be obtained. Accordingly, coexistence control between wireless communication devices is performed by determining the positional relationship between coverages of wireless communication devices and selecting operation parameters recommended for the wireless communication device according to the determined positional relationship. can be implemented. In addition, the first communication control device according to the present embodiment includes radio access technology information related to the wireless communication device managed by the second communication control device, information related to the operable frequency band, location information, information related to the duplex mode. , information about the transmission time interval can be obtained. As a result, information necessary for coexistence is shared between the communication control devices. In this way, it is possible to smoothly perform information exchange among a plurality of communication control apparatuses and coexistence control in consideration of wireless communication apparatuses under different communication control apparatuses.

Although the preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, the technical scope of the present disclosure is not limited to such examples. It is obvious that those who have ordinary knowledge in the technical field of the present disclosure can conceive of various modifications or modifications within the scope of the technical idea described in the claims. is naturally within the technical scope of the present disclosure.

Also, the processor (e.g., CPU, DSP, etc.) provided in the device of the present specification (e.g., base station, base station device or module for base station device, or terminal device or module for terminal device) A computer program (in other words, a computer program for causing the processor to perform the operations of the components of the device) can also be created for functioning as a component of the device (eg, processing unit 130, etc.). A recording medium recording the computer program may also be provided. Also, a device (for example, a base station, a base station device or a module for a base station device, or a terminal device or modules for terminal equipment) may also be provided. In addition, the technology according to the present disclosure also includes a method including the operation of the components of the apparatus (for example, the processing unit 130, etc.).

Also, the processes described in this specification using flowcharts and sequence diagrams do not necessarily have to be executed in the illustrated order. Some processing steps may be performed in parallel. Also, additional processing steps may be employed, and some processing steps may be omitted.

Also, the effects described herein are merely illustrative or exemplary, and are not limiting. In other words, the technology according to the present disclosure can produce other effects that are obvious to those skilled in the art from the description of this specification in addition to or instead of the above effects.

Note that the following configuration also belongs to the technical scope of the present disclosure.
(1)
Information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, or information on transmission time interval an information acquisition unit that acquires
A determination unit that determines a positional relationship between coverages of the wireless communication devices using the information, and selects recommended operating parameters for each of the wireless communication devices according to the determined positional relationship. and,
a notification unit that notifies the wireless communication device of the selected operating parameter;
A communication control device comprising:
(2)
The information acquisition unit acquires at least information on a geographic location and/or area and information on a duplex mode,
The determination unit determines a positional relationship between coverages of a plurality of wireless communication devices operating in TDD, selects a recommended TDD frame configuration for each wireless communication device,
The communication control device according to (1), wherein the notification unit notifies each wireless communication device of the recommended TDD frame configuration selected by the determination unit.
(3)
The information acquisition unit acquires information from a wireless communication device,
The communication control device according to (1) or (2) above.
(4)
Information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, or information on transmission time interval an information acquisition unit that acquires
a determination unit that extracts a wireless communication device corresponding to the information;
a notification unit that notifies the information related to the wireless communication device extracted by the determination unit;
A communication control device comprising:
(5)
The information acquisition unit acquires information from another communication control device,
The communication control device according to (1), (2), or (4).
(6)
Notifying the communication control device of information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval; a communication unit that acquires recommended operating parameters selected based on the information by the communication control device;
and a control unit that sets operating parameters based on the recommended operating parameters acquired by the communication unit.
(7)
The communication unit performs at least notifying information related to the duplex mode and acquiring information related to the recommended TDD frame configuration selected by the communication control device,
The wireless communication device according to (6), wherein the control unit changes TDD operation parameters based on information related to the recommended TDD frame configuration acquired by the communication unit.
(8)
Information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, or information on transmission time interval and
determining a positional relationship between coverages of the wireless communication devices using the information, and selecting recommended operating parameters for each of the wireless communication devices according to the determined positional relationship;
Notifying the wireless communication device of the selected operating parameters;
methods for implementing
(9)
Information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, or information on transmission time interval and
Extracting a wireless communication device corresponding to the information;
Notifying the information related to the extracted wireless communication device;
methods for implementing
(10)
Notifying the communication control device of information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval; obtaining recommended operating parameters selected by the communication control device based on the information;
setting operating parameters based on the recommended operating parameters;
methods for implementing
(11)
Information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, or information on transmission time interval an information acquisition unit that acquires
A determination unit that uses the information to determine a positional relationship between coverages of the wireless communication devices, and selects recommended operation parameters for each of the wireless communication devices according to the determined positional relationship. and,
a notification unit that notifies the wireless communication device of the selected operating parameter;
program to make it work.
(12)
Information indicating the network to which one or more wireless communication devices belong, radio access technology information, information on operable frequency bands, information on geographic location and/or area, information on duplex mode, or information on transmission time interval an information acquisition unit that acquires
a determination unit that extracts a wireless communication device corresponding to the information;
a notification unit that notifies the information related to the wireless communication device extracted by the determination unit;
program to make it work.
(13)
Notifying the communication control device of information indicating the network to which it belongs, information on the radio access technology in operation, information on the operable frequency band, information on the duplex mode, and information on the transmission time interval; a communication unit that acquires recommended operating parameters selected based on the information by the communication control device;
a control unit that sets operating parameters based on the recommended operating parameters acquired by the communication unit;
program to make it work.

10 communication control device 110 first communication unit 120 second communication unit 130 processing unit 131 information acquisition unit 132 determination unit 133 notification unit 20 network management device 30 wireless communication device 310 communication unit 320 control unit

Claims (10)

A communication control device that controls a plurality of wireless communication devices that secondary use at least part of a frequency band assigned to a primary system,
an information acquisition unit that acquires information about each of the plurality of wireless communication devices;
a determination unit that uses information about each of the plurality of wireless communication devices to determine a positional relationship between coverages of the wireless communication devices and selects a TDD frame configuration for each of the wireless communication devices;
a notification unit that notifies a TDD frame configuration for each of the selected wireless communication devices to the wireless communication device;
with
the information about each of the plurality of wireless communication devices includes information about a geographic location of each of the plurality of wireless communication devices and information about a TDD frame structure;
Communications controller. 2. The communication control device according to claim 1, wherein the information on said TDD frame configuration is obtained from each of said plurality of wireless communication devices. The information acquisition unit acquires at least part of information about each of the plurality of wireless communication devices from each of the wireless communication devices.
The communication control device according to claim 1 or 2. The information acquisition unit acquires at least part of the information about each of the plurality of wireless communication devices from another communication control device.
The communication control device according to claim 1. The information about each of the plurality of wireless communication devices includes information about the geographical location of each of the plurality of wireless communication devices, information about the TDD frame structure, and information about the group to which it belongs,
The communication control device according to claim 1. A wireless communication device that secondary uses at least part of a frequency band allocated to a primary system,
a communication unit that notifies a communication control device of information about the wireless communication device and acquires a TDD frame configuration for the wireless communication device selected by the communication control device based on the information;
a control unit that sets a TDD frame configuration based on the TDD frame configuration for the wireless communication device acquired by the communication unit;
with
the information about the wireless communication device includes information about a geolocation of the wireless communication device and information about a TDD frame structure;
wireless communication device. A communication control device that controls a plurality of wireless communication devices that secondary use at least part of the frequency band assigned to the primary system,
obtaining information about each of the plurality of wireless communication devices;
using information about each of the plurality of wireless communication devices to determine a positional relationship between coverages of the wireless communication devices and selecting a TDD frame configuration for each of the wireless communication devices;
notifying a TDD frame structure for each of the selected wireless communication devices to that wireless communication device;
A method for implementing
the information about each of the plurality of wireless communication devices includes information about a geographic location of each of the plurality of wireless communication devices and information about a TDD frame structure;
Method. A wireless communication device that secondary uses at least part of the frequency band allocated to the primary system,
Notifying a communication control device of information about the wireless communication device;
obtaining a TDD frame configuration for the wireless communication device selected by the communication control device based on the information;
setting a TDD frame configuration based on the obtained TDD frame configuration for the wireless communication device;
A method for implementing
the information about the wireless communication device includes information about a geolocation of the wireless communication device and information about a TDD frame structure;
Method. A communication control device that controls a plurality of wireless communication devices that secondary use at least part of the frequency band assigned to the primary system,
an information acquisition unit that acquires information about each of the plurality of wireless communication devices;
a determining unit that uses information about each of the plurality of wireless communication devices to determine a positional relationship between coverages of the wireless communication devices and selects a TDD frame configuration for each of the wireless communication devices; ,
a notification unit that notifies a TDD frame configuration for each of the selected wireless communication devices to the wireless communication device;
A program for functioning as
the information about each of the plurality of wireless communication devices includes information about a geographic location of each of the plurality of wireless communication devices and information about a TDD frame structure;
program. A wireless communication device that secondary uses at least part of the frequency band allocated to the primary system ,
a communication unit that notifies a communication control device of information about the wireless communication device and acquires a TDD frame configuration for the wireless communication device selected by the communication control device based on the information;
a control unit that sets a TDD frame configuration based on the TDD frame configuration for the wireless communication device acquired by the communication unit;
A program for functioning as
the information about the wireless communication device includes information about a geolocation of the wireless communication device and information about a TDD frame structure;
program.

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